We all want to do our part to improve the environment- as everyone knows, green is the new black. Sure, sustainability is hip, trendy, and socially conscious, but what steps are you taking right now to save the planet?

We want to know how you're reducing your environmental footprint, and hopefully saving some cash in the process! Are you modding your gear, simplifying your life, or building something awesome? Tell us what you're doing to go green, and teach us how- share what you know!

clear photographs (2+ megapixel preferred), use macro mode for close up shots

use of photo-notes where appropriate

list of parts and tools required (if appropriate)

safety notes (if appropriate)

usefulness

creativity

cost

technical merit

Judges from PopSci, TreeHugger, Instructables, and past contest winners will evaluate the entries by the above criteria, then vote for winners using range voting, the same system used in Olympic scoring. We'll announce the winners by Friday, 24 August 2007.

Additional InformationYou must be 18 or older to enter. If you are under 18, you can still enter, but to win you will need to verify that you had the permission of a parent or guardian (we will have a permission slip for you). Your parent could also join you as a collaborator on your Instructable.

International entries are great! Prizes and PopSci subscriptions can be mailed world-wide.

You may enter as many different Instructables as you like, however they will be judged on individual merit and you may only win one prize per contest. An Instructable may be entered in multiple contests if it meets the relevant criteria.